Objective： To explore the indication and experiences of Pemberton’s pericapsular osteotomy of the ilium in the treatment of developmental dislocation of the hip in children. Methods： From June 1999， 192 hips in 165 patients（31 male， 134 female） with developmental dislocation of the hip underwent Pemberton’s pericapsular osteotomy of the ilium， and 79 cases underwent the operation on left hip， 67 cases on right hip， 23 cases on both hips. According to T-觟nnis classification， 12 hips were graded as Ⅰ°， 46 hips as Ⅱ°， 95 hips as Ⅲ°， 39 hips as Ⅳ°. Results：All patients were followed up for a period from 4 months to 7 years （mean， 3 years and 2 months）， and were assessed clinically and radiologically. Clinical assessment was performed according to Mckay’s classification. The results showed that the overall excellent or good rate was 92.71%. Radiological assessment was performed according to Severin’s classification， and the results showed that the overall excellent or good rate was 91.66%. Conclusion： Pemberton’s pericapsular osteotomy of the ilium is an effective method to treat developmental dislocation of the hip in children.